The last two digits from the BoardId should match the end of the board-type from the first line of the second command. Here it is 82 and MV88F6282.
So for uBoot, search the Makefile for your board-name, e.g

grep -i MVLSWV Makefile

This will hopefully gives you a single entry containing your board-type and ending with the board-id, e.g. buffalo_mvlswvl_6282_config.